2Pack 8.0Ah 12V Replacement for Milwaukee M12 Battery Lithium Compatible with 48-11-2401 48-11-2460 48-11-2402 48-11-2412 48-11-2411 48-11-2420 48-11-2410 48-11-2430 48-11-2440 Cordless Tools
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This item is eligible for return within 30 days of receipt
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Availability:
In Stock.
Arrives
Thursday, Jul 24
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Features
- Upgraded to 8000mAh8000mAh upgraded capacity battery for Milwaukee M12 lithium Battery, the use time is longer than your original battery, 2pack M12 batteries is more durable, so that your tool lasts longer, and it can also reduce the number of charging times, making the battery life longer
- Widely CompatibilityPerfectly fits for milwaukee 12v battery M12 48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828 , 48-11-1840, 48-11-1841, 48-11-1850, 48-11-1852,etc. Compatible with All Milwaukee M12 tools and M12 battery charger.
- Long Lasting8.0Ah High Capacity 2X Longer Runtime Than Standard Batteries Unlike lower-capacity 4.0Ah/5.0Ah batteries, these high-capacity cells provide more sustained power, reducing the need for frequent recharges. The 2-pack set ensures uninterrupted workflowwhen one battery drains, the other is ready to go.
- Reliable QualityCrafted from premium materials to meet the specifications of M12 lithium batteries, these batteries incorporate safeguards against over-charging, over-discharging, over-voltage, over-current, and over-heating. Free from the memory effect, they retain their full capacity even after repeated charging and discharging cycles. Integrated LED indicators display charging status and remaining power.
- Professional Customer SupportBacked by a 24-month warranty and 60-day money-back guarantee, we ensure risk-free satisfaction. If you have any questions about this replacement for milwaukee 12v battery, please email us and we will reply you as soon as possible within 24 hours, and we will provide you with a satisfactory solution.
Number of Batteries: 2 A batteries required. (included)
Brand: Mounzuikue
Battery Cell Composition: Lithium Ion
Battery Capacity: 8 Amp Hours
Voltage: 12 Volts
Manufacturer: Mounzuikue
Brand: Mounzuikue
Model: 12V
Item Weight: 1.74 pounds
Package Dimensions: 6.14 x 5.08 x 3.94 inches
Item model number: M12
Batteries: 2 A batteries required. (included)
Manufacturer Part Number: M12
Voltage: 12 Volts
Date First Available: April 28, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jul 24
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
These M12 batteries have been great. I've used them in my impact wrench, impact driver and sawzall and they all performed flawlessly. I charged them up fully before first use and they worked out great. Fitment was good and I have no issues inserting or removing the batteries. If your Milwaukee tool came with only a 2.5Ah battery, I wouldn't hesitate ordering these to replace them with. It's a great value at this price.
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Reviewed in the United States on July 9, 2025 by Mef
These came with 2 of 3 bars of charge, the charge indicator lights are very bright by the way, so I topped them off on the charger before use with no issues. Fitment in my fuel die grinder and insider ratchet was good, possibly a little tight at first which I consider a good thing instead of loose. These have been working fine in my tools so far, I cannot attest to how long they will last for service life or actual Ah rating, but they surely are more Ah than my 2.5 Ah batteries I currently use. If there are no failures for a reasonable amount of time they are a good battery at a fair cost. I am not sure if I like the larger physical size batteries on my m12 tools, but that's just me. I did do a voltage check on these vs oem before putting on my tools, these were the same as my other fully charged batteries.
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Reviewed in the United States on July 2, 2025 by Cursed Mechanic Cursed Mechanic
Why did you pick this product vs others?: These batteries are working out well. So far I’ve used them on my inisider ratchet, the finger sander and my right angle grinder. The battery has no problem powering up the tool as expected. The only issue I see is that with the smaller watt hour rating it does not last that long in the right angle grinder but that’s to be expected with that type of tools power usage. The power level readout on the battery is nice to have for an easy check before use.
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Reviewed in the United States on July 5, 2025 by Anthony Anthony
The media could not be loaded. I got these batteries for my Milwaukee 12v cordless tools, of which I have several. Anyone who has cordless power tools knows that you can never have too many batteries. As OEM Milwaukee battery prices rise, it makes sense to try out these clones. Most of my Milwaukee 12v OEM batteries are the compact size 2.0 Ah capacity, but I do have some that are the larger size 4.0 Ah. The Mounzuikue batteries that I am reviewing here are the same physical size as my OEM 4.0 Ah batteries, but have a rating of 8.0 Ah, double that of the OEM batteries. Note that these have the highest rating of any aftermarket batteries that I own. When I received these batteries, they had almost a full charge, but I put them on my OEM Milwaukee charger as recommended by most battery makers before using for the first time. Charging appeared to work fine. Note that some battery makers indicate that 3 to 5 charge/discharge cycles are required for the battery to achieve its full capacity. I used these batteries for a project in my Milwaukee drill and impact tool. Both worked fine and, while not an exhaustive test, they did a good job and still showed a full charge after use. Note that both of the Mounzuikue batteries I tested fit properly and without any problems in multiple OEM Milwaukee 12v tools. One item to note is that these batteries have a hard plastic bottom unlike the OEM Milwaukee which as a rubber-like finish. This did not really bother me, but keep it in mind. So, two questions that come up are (1) how long before the battery is discharged under a really long work session and (2) how long will the battery hold up under long term use. Some of my Milwaukee batteries are several years old so, hopefully, these batteries will last just as long. I do not use my tools in a professional environment, but as active do-it-yourselfer, home mechanic, and race car owner, I expect a lot from my tools.
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Reviewed in the United States on June 1, 2025 by MarkK10 MarkK10
Why did you pick this product vs others?: I have used this brand of equipment for years and have also used original equipment and aftermarket batteries for them. These batteries charge well last a long time in the tool just as long as an original equipment does. If you are looking for a less expensive battery then the name brand then these are a good substitute. And that is the major selling point for them The quality is good but they are less expensive.
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Reviewed in the United States on June 26, 2025 by P.M.
Style: A
Why did you pick this product vs others?: Fails to stay in drill....holds charge very well but falls out
Reviewed in the United States on June 25, 2025 by rbird
These M12 batteries work great, but the capacity isn't 8Ah. The batteries fit fine, and I like this larger batteries because they let most tools stand upright. Also, I like the lights on the battery to show the current battery level - good for checking the level while the battery is away from the tool. Power output seems good, though not on par with the name brand XC and HO batteries. The biggest difference, though, is the capacity. These "8Ah" batteries give me a shorter runtime than my stock XC4.0 that's seen quite a bit of use. It seems like the weight of a battery is a good indication of quality. These 8Ah batteries weigh 12.87 ounces each. For comparison, a stock XC4.0 battery weighs 14.08 ounces.
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Reviewed in the United States on June 22, 2025 by Better Deals
Ok, so first off, these are not going to be 8Ah batteries. They weigh less than all my other OEM batteries. Knowing that is important but factoring in the price, makes these worth it. You get two batteries for less than you can get one OEM. I'll crack one open one of these days to see what type of cells are in them. Did a basic test with run time and ran the battery on high with the M12 rover light. It lasted for a little over 7 hours. I did this test multiple times. Did the same test with an OEM 6Ah battery and it lasted for 10.5 hours. Having the battery level on the batteries is nice as you normally need to put the battery on the tool to see if it has any juice. This saves you having to do that. Nice touch. I tested the batteries on a handful of my Milwaukee M12 tools and they all worked perfectly fine. The batteries fit no problems, never falling out or having a hard time to remove. They don't have the rubber on them like the OEMs which isn't a big deal. Just want to mention it. Overall, for the price, it is a good purchase but know that they are not going to be 8Ah as they claim. 3 stars.
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Reviewed in the United States on June 11, 2025 by Chris